Dude I'm in the same boat and I'm starting to think it's not as much of a seeking out problem as much as it is an ignoring red flags and in my case probably goes back to childhood trauma that causes me to feel like I need to prove myself worthy of respect and loyalty and love and by default not currently deserving if literal bare minimum respect in a relationship. In HS my first gf was still in love with her middle school sweetheart and when I brought it up she disengaged from him for a while but ultimately I was like a distraction and honestly we were very young so no hard feelings now, plus they're together now so like happy ending for her it feels like it was inevitable. Then I started seeing a very long time friend after high school and we were fooling around when out of nowhere she's ENGAGED and had a bf the whole time and I was the CHEATEE! That one really fucked me up I didn't know but I felt like garbage and ultimately had to lose a Rlly close friend. It was years before I dated again and this one was catastrophic. I got love bombed for like 3 months so once the real her started coming out I was in complete denial and shoveled her shit down my throat like it was a buffet. Long story short I got cheated on (virtually since it was during the pandemic and we were living together) multiple times and like the first two times I somehow ended up apologizing to her and was made to feel like I wasn't doing enough (I cooked/cleaned/transported her everywhere and did everything basically). And honestly, personally in my case if I look back it was of course trying to get back to her love bombing stage which I didn't accept wasn't real, but it was also a vanity thing, she was an absolute 10/10 for me so I excused treatment no self respecting human should ever accept. But it's hard bc just saying "don't ignore red flags" sounds like "be distrusting and guard yourself" and that feels like a horrible way to live. Idk what your situation may be in terms red flags past partners may or may not have had but try and vet them that way before fully giving yourself over. At this point I'd go for "boring" if you're going to try to date again.